Data Sheet

Compute Module 3+ Datasheet
Copyright Raspberry Pi (Trading) Ltd. 2019
Symbol Parameter Conditions Minimum Typical Maximum Unit
V
IL
Input low voltage
a
VDD IO = 1.8V - - 0.6 V
VDD IO = 2.7V - - 0.8 V
VDD IO = 3.3V - - 0.9 V
V
IH
Input high voltage
a
VDD IO = 1.8V 1.0 - - V
VDD IO = 2.7V 1.3 - - V
VDD IO = 3.3V 1.6 - - V
I
IL
Input leakage current TA = +85
◦
C - - 5 µA
C
IN
Input capacitance - - 5 - pF
V
OL
Output low voltage
b
VDD IO = 1.8V, IOL = -2mA - - 0.2 V
VDD IO = 2.7V, IOL = -2mA - - 0.15 V
VDD IO = 3.3V, IOL = -2mA - - 0.14 V
V
OH
Output high voltage
b
VDD IO = 1.8V, IOH = 2mA 1.6 - - V
VDD IO = 2.7V, IOH = 2mA 2.5 - - V
VDD IO = 3.3V, IOH = 2mA 3.0 - - V
I
OL
Output low current
c
VDD IO = 1.8V, VO = 0.4V 12 - - mA
VDD IO = 2.7V, VO = 0.4V 17 - - mA
VDD IO = 3.3V, VO = 0.4V 18 - - mA
I
OH
Output high current
c
VDD IO = 1.8V, VO = 1.4V 10 - - mA
VDD IO = 2.7V, VO = 2.3V 16 - - mA
VDD IO = 3.3V, VO = 2.3V 17 - - mA
R
P U
Pullup resistor - 50 - 65 kΩ
R
P D
Pulldown resistor - 50 - 65 kΩ
a
Hysteresis enabled
b
Default drive strength (8mA)
c
Maximum drive strength (16mA)
Table 5: DC Characteristics
AC Characteristics are defined in Table 6 and Fig. 3.
Pin Name Symbol Parameter Minimum Typical Maximum Unit
Digital outputs t
rise
10-90% rise time
a
- 1.6 - ns
Digital outputs t
fall
90-10% fall time
a
- 1.7 - ns
GPCLK t
JOSC
Oscillator-derived GPCLK - - 20 ps
cycle-cycle jitter (RMS)
GPCLK t
JP LL
PLL-derived GPCLK - - 48 ps
cycle-cycle jitter (RMS)
a
Default drive strength, CL = 5pF, VDD IOx = 3.3V
Table 6: Digital I/O Pin AC Characteristics
12 Release 2